2013-12-24 15:50:39 UPDATED: (M22.0) WESTERN MONTANA 47.9 -114.3 (442af)

M22.0 - WESTERN MONTANA

Preliminary Earthquake Report

Magnitude	22.0
Date-Time	24 Dec 2013 15:50:39 UTC 24 Dec 2013 08:50:39 near epicenter 24 Dec 2013 05:50:39 standard time in your timezone
Location	47.851N 114.284W
Depth	6 km
Distances	19 km (11 mi) NNW of Polson, Montana 38 km (23 mi) S of Kalispell, Montana 111 km (68 mi) N of Missoula, Montana 187 km (115 mi) E of Hayden, Idaho 220 km (136 mi) NW of Helena, Montana
Location Uncertainty	Horizontal: 0.4 km; Vertical 0.5 km
Parameters	Nph = 7; Dmin = 19.3 km; Rmss = 0.13 seconds; Gp = 75° Version = 1
Event ID	mb 29878 ***This event has been revised.

For updates, maps, and technical information, see: Event Page or USGS Earthquake Hazards Program
Montana Regional Seismic Network
Montana Bureau of Mines and Geology
http://mbmgquake.mtech.edu


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